用计算器验证,下列不等式中成立的是( )
A.sin37°24′>cos37°24′+cos3°10′ | B.cos45°32′>sin45°﹣sin1°12′ |
C.sin63°47′<cos18°21′﹣cos87° | D.2sin30°12′<sin60°24′ |
用计算器验证,下列不等式中成立的是( )
A.sin37°24′>cos37°24′+cos3°10′ | B.cos45°32′>sin45°﹣sin1°12′ |
C.sin63°47′<cos18°21′﹣cos87° | D.2sin30°12′<sin60°24′ |
试题篮
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